Finding the Fourth Proportional to 42,697,216.53, 64,049,762.00 and 13,943,502.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,697,216.53 : 64,049,762.00 = 13,943,502.81 : x
2. Step 2: Convert to fraction form
   42,697,216.53/64,049,762.00 = 13,943,502.81/x
3. Step 3: Cross multiply
   42,697,216.53x = 64,049,762.00 × 13,943,502.81
4. Step 4: Simplify right side
   42,697,216.53x = 893,078,036,461,690
5. Step 5: Solve for x
   x = 893,078,036,461,690/42,697,216.53
6. Step 6: Final answer
   x = 20,916,539.98