Finding the Fourth Proportional to 42,139,389.61, 63,209,165.73 and 16,243,885.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,139,389.61 : 63,209,165.73 = 16,243,885.45 : x
2. Step 2: Convert to fraction form
   42,139,389.61/63,209,165.73 = 16,243,885.45/x
3. Step 3: Cross multiply
   42,139,389.61x = 63,209,165.73 × 16,243,885.45
4. Step 4: Simplify right side
   42,139,389.61x = 1,026,762,447,508,185.50
5. Step 5: Solve for x
   x = 1,026,762,447,508,185.50/42,139,389.61
6. Step 6: Final answer
   x = 24,365,859.52