Finding the Fourth Proportional to 898,559,667.72, 1,347,984,336.06 and 276,774,611.40

Step by Step Solution

1. Step 1: Write the proportion equation
   898,559,667.72 : 1,347,984,336.06 = 276,774,611.40 : x
2. Step 2: Convert to fraction form
   898,559,667.72/1,347,984,336.06 = 276,774,611.40/x
3. Step 3: Cross multiply
   898,559,667.72x = 1,347,984,336.06 × 276,774,611.40
4. Step 4: Simplify right side
   898,559,667.72x = 373,087,840,786,293,440
5. Step 5: Solve for x
   x = 373,087,840,786,293,440/898,559,667.72
6. Step 6: Final answer
   x = 415,206,529.06