Finding the Fourth Proportional to 13,164,783.99, 18,168,936.45 and 7,658,390.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164,783.99 : 18,168,936.45 = 7,658,390.93 : x
2. Step 2: Convert to fraction form
   13,164,783.99/18,168,936.45 = 7,658,390.93/x
3. Step 3: Cross multiply
   13,164,783.99x = 18,168,936.45 × 7,658,390.93
4. Step 4: Simplify right side
   13,164,783.99x = 139,144,818,142,141.48
5. Step 5: Solve for x
   x = 139,144,818,142,141.48/13,164,783.99
6. Step 6: Final answer
   x = 10,569,472.18