Finding the Fourth Proportional to 127,675.92, 191,264.72 and 99,463.88

Step by Step Solution

1. Step 1: Write the proportion equation
   127,675.92 : 191,264.72 = 99,463.88 : x
2. Step 2: Convert to fraction form
   127,675.92/191,264.72 = 99,463.88/x
3. Step 3: Cross multiply
   127,675.92x = 191,264.72 × 99,463.88
4. Step 4: Simplify right side
   127,675.92x = 19,023,931,158.31
5. Step 5: Solve for x
   x = 19,023,931,158.31/127,675.92
6. Step 6: Final answer
   x = 149,001.72