Finding the Fourth Proportional to 91,051.17, 125,670.78 and 59,164.71

Step by Step Solution

1. Step 1: Write the proportion equation
   91,051.17 : 125,670.78 = 59,164.71 : x
2. Step 2: Convert to fraction form
   91,051.17/125,670.78 = 59,164.71/x
3. Step 3: Cross multiply
   91,051.17x = 125,670.78 × 59,164.71
4. Step 4: Simplify right side
   91,051.17x = 7,435,275,254.17
5. Step 5: Solve for x
   x = 7,435,275,254.17/91,051.17
6. Step 6: Final answer
   x = 81,660.40