Finding the Fourth Proportional to 42,254,719.54, 63,391,172.52 and 13,107,977.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,254,719.54 : 63,391,172.52 = 13,107,977.62 : x
2. Step 2: Convert to fraction form
   42,254,719.54/63,391,172.52 = 13,107,977.62/x
3. Step 3: Cross multiply
   42,254,719.54x = 63,391,172.52 × 13,107,977.62
4. Step 4: Simplify right side
   42,254,719.54x = 830,930,070,697,719
5. Step 5: Solve for x
   x = 830,930,070,697,719/42,254,719.54
6. Step 6: Final answer
   x = 19,664,787.27