Finding the Fourth Proportional to 137,570,547.98, 189,774,997.56 and 81,776,282.69

Step by Step Solution

1. Step 1: Write the proportion equation
   137,570,547.98 : 189,774,997.56 = 81,776,282.69 : x
2. Step 2: Convert to fraction form
   137,570,547.98/189,774,997.56 = 81,776,282.69/x
3. Step 3: Cross multiply
   137,570,547.98x = 189,774,997.56 × 81,776,282.69
4. Step 4: Simplify right side
   137,570,547.98x = 15,519,093,848,435,058
5. Step 5: Solve for x
   x = 15,519,093,848,435,058/137,570,547.98
6. Step 6: Final answer
   x = 112,808,257.84