Finding the Fourth Proportional to 147,307.98, 203,311.50 and 86,875.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,307.98 : 203,311.50 = 86,875.10 : x
2. Step 2: Convert to fraction form
   147,307.98/203,311.50 = 86,875.10/x
3. Step 3: Cross multiply
   147,307.98x = 203,311.50 × 86,875.10
4. Step 4: Simplify right side
   147,307.98x = 17,662,705,877.09
5. Step 5: Solve for x
   x = 17,662,705,877.09/147,307.98
6. Step 6: Final answer
   x = 119,903.25