Finding the Fourth Proportional to 76,139,670.78, 114,213,936.33 and 21,547,689.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,139,670.78 : 114,213,936.33 = 21,547,689.30 : x
2. Step 2: Convert to fraction form
   76,139,670.78/114,213,936.33 = 21,547,689.30/x
3. Step 3: Cross multiply
   76,139,670.78x = 114,213,936.33 × 21,547,689.30
4. Step 4: Simplify right side
   76,139,670.78x = 2,461,046,413,768,822.50
5. Step 5: Solve for x
   x = 2,461,046,413,768,822.50/76,139,670.78
6. Step 6: Final answer
   x = 32,322,787.69