Finding the Fourth Proportional to 61,078.59, 91,586.93 and 21,630.15

Step by Step Solution

1. Step 1: Write the proportion equation
   61,078.59 : 91,586.93 = 21,630.15 : x
2. Step 2: Convert to fraction form
   61,078.59/91,586.93 = 21,630.15/x
3. Step 3: Cross multiply
   61,078.59x = 91,586.93 × 21,630.15
4. Step 4: Simplify right side
   61,078.59x = 1,981,038,925.79
5. Step 5: Solve for x
   x = 1,981,038,925.79/61,078.59
6. Step 6: Final answer
   x = 32,434.26