Finding the Fourth Proportional to 59,781.34, 89,702.43 and 45,830.71

Step by Step Solution

1. Step 1: Write the proportion equation
   59,781.34 : 89,702.43 = 45,830.71 : x
2. Step 2: Convert to fraction form
   59,781.34/89,702.43 = 45,830.71/x
3. Step 3: Cross multiply
   59,781.34x = 89,702.43 × 45,830.71
4. Step 4: Simplify right side
   59,781.34x = 4,111,126,055.63
5. Step 5: Solve for x
   x = 4,111,126,055.63/59,781.34
6. Step 6: Final answer
   x = 68,769.39