Finding the Fourth Proportional to 151,308, 208,811.52 and 84,240

Step by Step Solution

1. Step 1: Write the proportion equation
   151,308 : 208,811.52 = 84,240 : x
2. Step 2: Convert to fraction form
   151,308/208,811.52 = 84,240/x
3. Step 3: Cross multiply
   151,308x = 208,811.52 × 84,240
4. Step 4: Simplify right side
   151,308x = 17,590,282,444.80
5. Step 5: Solve for x
   x = 17,590,282,444.80/151,308
6. Step 6: Final answer
   x = 116,254.81