Finding the Fourth Proportional to 55,490,233.60, 83,164,491.60 and 42,647,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,490,233.60 : 83,164,491.60 = 42,647,076.10 : x
2. Step 2: Convert to fraction form
   55,490,233.60/83,164,491.60 = 42,647,076.10/x
3. Step 3: Cross multiply
   55,490,233.60x = 83,164,491.60 × 42,647,076.10
4. Step 4: Simplify right side
   55,490,233.60x = 3,546,722,402,083,010.50
5. Step 5: Solve for x
   x = 3,546,722,402,083,010.50/55,490,233.60
6. Step 6: Final answer
   x = 63,916,155.55