Finding the Fourth Proportional to 127,502.48, 191,124.56 and 64,131.12

Step by Step Solution

1. Step 1: Write the proportion equation
   127,502.48 : 191,124.56 = 64,131.12 : x
2. Step 2: Convert to fraction form
   127,502.48/191,124.56 = 64,131.12/x
3. Step 3: Cross multiply
   127,502.48x = 191,124.56 × 64,131.12
4. Step 4: Simplify right side
   127,502.48x = 12,257,032,092.31
5. Step 5: Solve for x
   x = 12,257,032,092.31/127,502.48
6. Step 6: Final answer
   x = 96,131.72