Finding the Fourth Proportional to 57,887,771.40, 79,885,281.72 and 31,783,980

Step by Step Solution

1. Step 1: Write the proportion equation
   57,887,771.40 : 79,885,281.72 = 31,783,980 : x
2. Step 2: Convert to fraction form
   57,887,771.40/79,885,281.72 = 31,783,980/x
3. Step 3: Cross multiply
   57,887,771.40x = 79,885,281.72 × 31,783,980
4. Step 4: Simplify right side
   57,887,771.40x = 2,539,072,196,482,845.50
5. Step 5: Solve for x
   x = 2,539,072,196,482,845.50/57,887,771.40
6. Step 6: Final answer
   x = 43,861,978.71