Finding the Fourth Proportional to 148,751.31, 205,256.16 and 87,500.28

Step by Step Solution

1. Step 1: Write the proportion equation
   148,751.31 : 205,256.16 = 87,500.28 : x
2. Step 2: Convert to fraction form
   148,751.31/205,256.16 = 87,500.28/x
3. Step 3: Cross multiply
   148,751.31x = 205,256.16 × 87,500.28
4. Step 4: Simplify right side
   148,751.31x = 17,959,971,471.72
5. Step 5: Solve for x
   x = 17,959,971,471.72/148,751.31
6. Step 6: Final answer
   x = 120,738.24