Finding the Fourth Proportional to 59,258,731.61, 81,761,279.50 and 40,679,554.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,258,731.61 : 81,761,279.50 = 40,679,554.25 : x
2. Step 2: Convert to fraction form
   59,258,731.61/81,761,279.50 = 40,679,554.25/x
3. Step 3: Cross multiply
   59,258,731.61x = 81,761,279.50 × 40,679,554.25
4. Step 4: Simplify right side
   59,258,731.61x = 3,326,012,404,969,663
5. Step 5: Solve for x
   x = 3,326,012,404,969,663/59,258,731.61
6. Step 6: Final answer
   x = 56,126,959.09