Finding the Fourth Proportional to 42,219,077.61, 63,369,567.83 and 20,374,829.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,219,077.61 : 63,369,567.83 = 20,374,829.58 : x
2. Step 2: Convert to fraction form
   42,219,077.61/63,369,567.83 = 20,374,829.58/x
3. Step 3: Cross multiply
   42,219,077.61x = 63,369,567.83 × 20,374,829.58
4. Step 4: Simplify right side
   42,219,077.61x = 1,291,144,145,094,500.25
5. Step 5: Solve for x
   x = 1,291,144,145,094,500.25/42,219,077.61
6. Step 6: Final answer
   x = 30,582,007.43