Finding the Fourth Proportional to 243,727,075.35, 336,343,364.00 and 139,307,388.72

Step by Step Solution

1. Step 1: Write the proportion equation
   243,727,075.35 : 336,343,364.00 = 139,307,388.72 : x
2. Step 2: Convert to fraction form
   243,727,075.35/336,343,364.00 = 139,307,388.72/x
3. Step 3: Cross multiply
   243,727,075.35x = 336,343,364.00 × 139,307,388.72
4. Step 4: Simplify right side
   243,727,075.35x = 46,855,115,751,443,920
5. Step 5: Solve for x
   x = 46,855,115,751,443,920/243,727,075.35
6. Step 6: Final answer
   x = 192,244,196.44