Finding the Fourth Proportional to 101,719.55, 152,147.33 and 91,265.15

Step by Step Solution

1. Step 1: Write the proportion equation
   101,719.55 : 152,147.33 = 91,265.15 : x
2. Step 2: Convert to fraction form
   101,719.55/152,147.33 = 91,265.15/x
3. Step 3: Cross multiply
   101,719.55x = 152,147.33 × 91,265.15
4. Step 4: Simplify right side
   101,719.55x = 13,885,748,438.22
5. Step 5: Solve for x
   x = 13,885,748,438.22/101,719.55
6. Step 6: Final answer
   x = 136,510.12