Finding the Fourth Proportional to 72,439,931.61, 99,934,128.68 and 43,054,563.69

Step by Step Solution

1. Step 1: Write the proportion equation
   72,439,931.61 : 99,934,128.68 = 43,054,563.69 : x
2. Step 2: Convert to fraction form
   72,439,931.61/99,934,128.68 = 43,054,563.69/x
3. Step 3: Cross multiply
   72,439,931.61x = 99,934,128.68 × 43,054,563.69
4. Step 4: Simplify right side
   72,439,931.61x = 4,302,620,307,842,442.50
5. Step 5: Solve for x
   x = 4,302,620,307,842,442.50/72,439,931.61
6. Step 6: Final answer
   x = 59,395,698.09