Finding the Fourth Proportional to 12,078,460.82, 16,662,783.93 and 7,180,904.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078,460.82 : 16,662,783.93 = 7,180,904.18 : x
2. Step 2: Convert to fraction form
   12,078,460.82/16,662,783.93 = 7,180,904.18/x
3. Step 3: Cross multiply
   12,078,460.82x = 16,662,783.93 × 7,180,904.18
4. Step 4: Simplify right side
   12,078,460.82x = 119,653,854,773,373.81
5. Step 5: Solve for x
   x = 119,653,854,773,373.81/12,078,460.82
6. Step 6: Final answer
   x = 9,906,382.66