Finding the Fourth Proportional to 152,191.31, 210,108.47 and 91,777.25

Step by Step Solution

1. Step 1: Write the proportion equation
   152,191.31 : 210,108.47 = 91,777.25 : x
2. Step 2: Convert to fraction form
   152,191.31/210,108.47 = 91,777.25/x
3. Step 3: Cross multiply
   152,191.31x = 210,108.47 × 91,777.25
4. Step 4: Simplify right side
   152,191.31x = 19,283,177,644.69
5. Step 5: Solve for x
   x = 19,283,177,644.69/152,191.31
6. Step 6: Final answer
   x = 126,703.54