Finding the Fourth Proportional to 12,776,166.82, 19,142,597.31 and 7,716,848.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,776,166.82 : 19,142,597.31 = 7,716,848.50 : x
2. Step 2: Convert to fraction form
   12,776,166.82/19,142,597.31 = 7,716,848.50/x
3. Step 3: Cross multiply
   12,776,166.82x = 19,142,597.31 × 7,716,848.50
4. Step 4: Simplify right side
   12,776,166.82x = 147,720,523,337,777.53
5. Step 5: Solve for x
   x = 147,720,523,337,777.53/12,776,166.82
6. Step 6: Final answer
   x = 11,562,194.31