Finding the Fourth Proportional to 151,526.98, 209,131.86 and 91,158.63

Step by Step Solution

1. Step 1: Write the proportion equation
   151,526.98 : 209,131.86 = 91,158.63 : x
2. Step 2: Convert to fraction form
   151,526.98/209,131.86 = 91,158.63/x
3. Step 3: Cross multiply
   151,526.98x = 209,131.86 × 91,158.63
4. Step 4: Simplify right side
   151,526.98x = 19,064,173,846.95
5. Step 5: Solve for x
   x = 19,064,173,846.95/151,526.98
6. Step 6: Final answer
   x = 125,813.73