Finding the Fourth Proportional to 103,110,692.43, 142,293,495.78 and 56,067,428.80

Step by Step Solution

1. Step 1: Write the proportion equation
   103,110,692.43 : 142,293,495.78 = 56,067,428.80 : x
2. Step 2: Convert to fraction form
   103,110,692.43/142,293,495.78 = 56,067,428.80/x
3. Step 3: Cross multiply
   103,110,692.43x = 142,293,495.78 × 56,067,428.80
4. Step 4: Simplify right side
   103,110,692.43x = 7,978,030,443,348,250
5. Step 5: Solve for x
   x = 7,978,030,443,348,250/103,110,692.43
6. Step 6: Final answer
   x = 77,373,454.25