Finding the Fourth Proportional to 152,370.56, 210,201.59 and 98,672.90

Step by Step Solution

1. Step 1: Write the proportion equation
   152,370.56 : 210,201.59 = 98,672.90 : x
2. Step 2: Convert to fraction form
   152,370.56/210,201.59 = 98,672.90/x
3. Step 3: Cross multiply
   152,370.56x = 210,201.59 × 98,672.90
4. Step 4: Simplify right side
   152,370.56x = 20,741,199,665.59
5. Step 5: Solve for x
   x = 20,741,199,665.59/152,370.56
6. Step 6: Final answer
   x = 136,123.40